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When to Plant Anise in Pinellas County, FL

Anise is an annual herb grown for its licorice-flavored seeds and leaves. The seeds are used in baking, liqueurs, and traditional medicine worldwide.

Pinellas County, Florida is in USDA Zone 9b. The average last spring frost is January 25 and the first fall frost is December 16, giving you a growing season of approximately 325 days.

At an elevation of 246 feet, Pinellas County receives approximately 58.1 inches of rainfall annually with predominantly sand soil. Summer highs average 102ยฐF, so Anise may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Anise will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Anise root diseases.

Pinellas County, FL (Zone 9b) Year-round
325 days
Last Spring Frost January 25
325 growing days
First Fall Frost December 16

Pinellas County Soil Profile

Soil Type

Sand

Soil pH

5.1-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (164 days to spare)
Start indoors: Dec 22 Transplant: Jan 12 🍅 Harvest: Apr 13 – Jun 29
Recommended (50%) ✓ Fits season (164 days to spare)
Start indoors: Dec 28 Transplant: Jan 18 🍅 Harvest: Apr 19 – Jul 5
Safe Start (90%) ✓ Fits season (138 days to spare)
Start indoors: Jan 31 Transplant: Feb 21 🍅 Harvest: May 23 – Aug 8

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Soil Compatibility in Pinellas County

How your county's soil matches Anise's growing requirements.

Soil pH

Your soil pH (5.1โ€“6.2) is more acidic than Anise prefers (6.0โ€“7.5). Add garden lime to raise pH.

Soil Texture

Sandy soil in Pinellas County warms quickly in spring but drains fast. Anise will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Anise.

Organic Matter

Organic matter is low (1.5%). Add 2-3 inches of compost before planting Anise.

How to Plant Anise

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Plant Water Budget

Plant needs
0.4″/week
Rainfall provides
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Anise

Anise needs approximately 0.4 inches of water per week (1.7" per month). Here's how your county's rainfall compares month by month.

Month Anise Needs Rainfall You Supplement Action
Jan 1.7" 2.9" 0" โœ… Rainfall sufficient
Feb 1.7" 3.2" 0" โœ… Rainfall sufficient
Mar 1.7" 3.7" 0" โœ… Rainfall sufficient
Apr 1.7" 2.4" 0" โœ… Rainfall sufficient
May 1.7" 3.6" 0" โœ… Rainfall sufficient
Jun 1.7" 7.6" 0" โœ… Rainfall sufficient
Jul 1.7" 8.5" 0" โœ… Rainfall sufficient
Aug 1.7" 8.7" 0" โœ… Rainfall sufficient
Sep 1.7" 7.1" 0" โœ… Rainfall sufficient
Oct 1.7" 5.3" 0" โœ… Rainfall sufficient
Nov 1.7" 2.5" 0" โœ… Rainfall sufficient
Dec 1.7" 2.6" 0" โœ… Rainfall sufficient

Water needs are for active growing months only (Janโ€“Dec in Pinellas County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Anise Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" โ€” every day above 50ยฐF deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Anise needs ~2,782 GDD — county provides 8,639 GDD Excellent fit

Anise Planting Timeline โ€” Pinellas County, FL

Anise Planting Calendar

Activity When Date Range
Start Indoors December 28 Dec 28 โ€“ Jan 11
Transplant Outdoors January 18 Jan 18 โ€“ Feb 1
Direct Sow January 4 Jan 4 โ€“ Jan 25
Harvest April 19 Apr 19 โ€“ Jul 5
Fall Sowing October 21 Oct 21 โ€“ Nov 4

Plant 0.5" deep ยท 8" apart ยท Rows 12" apart

Month-by-Month Timeline

MonthActivities
January Start Indoors Transplant Outdoors Direct Sow
February Transplant Outdoors
March โ€”
April Harvest
May Harvest
June Harvest
July Harvest
August โ€”
September โ€”
October Fall Sowing
November Fall Sowing
December Start Indoors

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.4"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

90โ€“120 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: too_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 9b

๐Ÿ“† Growing Season

325 days in Pinellas County

Growing Tips for Anise in Pinellas County

Direct sow Anise outdoors after January 25 in Pinellas County when soil has warmed and frost danger has passed.

Sandy soil in Pinellas County dries quickly โ€” mulch Anise with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 102ยฐF in Pinellas County, provide afternoon shade for Anise and water deeply in the morning.

Common pests for Anise in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

With 58" of annual rainfall in Pinellas County, ensure good drainage for Anise โ€” excess moisture can promote root rot and fungal diseases.

General growing tips

Direct sow after last frost as anise has a taproot. Harvest seeds when they turn brown. Plants may need staking. The feathery leaves are also edible with a mild anise flavor.

Companion Planting

Good Companions

Avoid Planting Near

  • Carrots

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Anise in Pinellas County, FL?

Pinellas County is in Zone 9b with an average last frost of January 25. Plan your Anise planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Pinellas County, FL?

Pinellas County, Florida is in USDA Hardiness Zone 9b. The average last spring frost is January 25 and first fall frost is December 16.

๐ŸŒฑ

Plan Your Garden with Confidence

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Pinellas County, FL. Local conditions may vary. Last updated: April 2026.